The answer is (c.) argument and emotion
Answer:
Marco recycled the empty soda can.
The author uses ethos (author credibility and trust in their credentials) by using the word "our" so often. This places the author in collaboration with the reader, showing that he believes that they are all one and working together to achieve a common purpose.
The party he had was a surpise
Answer:
It would have to be adolescents who have taken an interest in astronomy.
"They "lurk" in the shadows, "Mangling" stars and "gobbling" them up."